Lasair. A UK Alert Stream Broker and Transient Science Platform.

diaObjectId
170032926591287352

187.408559, 7.826865

Discovery Date: 2026-02-19 06:11:07 UTC

Discovery MJD: 61090.26

Disc g-Flux: 2214.08±312.91

Latest Date: 2026-02-24 04:48:22 UTC

Latest MJD: 61095.20

Latest g-Flux: -1855.50±452.64

Peak Flux	2247.58±415.08 (i-band)
UTC at Peak	2026-02-23 05:32:33
MJD at Peak	61094.23
Detection Count	7
Equatorial Lon,Lat	12:29:38.054, 07:49:36.712
Galactic Lon,Lat	286.945805, 70.018980
Ecliptic Lon,Lat	183.671092, 10.122647
E(B-V) Extinction	0.024208

Duplicate diaObjects

Transient Name Server

Gap AT2017jfs

The transient was discovered on 26th December 2017 at 03:05:45 (MJD 58113.13) by GaiaAlerts as Gaia17dkh with a discovery magnitude of G = 17.17. It was subsequently classified as a Gap at z = 0.008.

Sherlock Contextual Classification

Prediction: Supernova

The transient is possibly associated with NGC4470; an r=12.38 mag galaxy found in the NED-D/SDSS/LASR catalogues. Its located 9.83" N, 4.20" E (0.8 Kpc) from the galaxy centre. A host distance of 16.4 Mpc(z=0.008) implies a m - M = 31.07.

Difference Image Lightcurve

Access the data from this plot in the LSST Alert Packet Data table below.

Learn how to interact with this plot.

Context Map

Recent Image Stamps

target

reference

difference

External Resources

Alerce Antares DECaLS Fink NED SIMBAD ZTF

LSST Alert Packet Data

MJD	UTC	band	target diff flux	reliability	images	alert packet
61095.200265	2026-02-24 04:48:22	i	-1856 ± 453	0.35	target ref diff	data
61095.171640	2026-02-24 04:07:09	i	-2546 ± 453	0.35	target ref diff	data
61094.260145	2026-02-23 06:14:36	r	-1726 ± 304	0.36	target ref diff	data
61094.230946	2026-02-23 05:32:33	i	2248 ± 415	0.32	target ref diff	data
61094.228295	2026-02-23 05:28:44	i	-2333 ± 380	0.36	target ref diff	data
61094.212987	2026-02-23 05:06:42	g	1549 ± 314	0.29	target ref diff	data
61091.275233	2026-02-20 06:36:20	r	-4348 ± 734	0.45	target ref diff	data
61090.257723	2026-02-19 06:11:07	g	2214 ± 313	0.24	target ref diff	data

MJD	filter	magpsf	magpsf_error	flux_status

Need Help?

Start with our documentation on readthedocs, you might find the FAQ section especially useful.

If you still have questions, want to report a bug, or make a feature request, please reach out to us on the Lasair topic on the Rubin Community pages.